A rectangle with constant area has possible lengths and widths as shown in the table. Width vs. Length of a Rectangle Width w Length l 2 37 point 5 4 18 point 7 5 6 12 point 5 8 9 point 3 7 5 Which equation can be used to find any corresponding length and width that fit the pattern in this table?

For a rectangle with constant area, length × width stays constant. The table follows this inverse relationship: for example, 2 × 37.5 = 75 and 6 × 12.5 = 75. So the length can be found with l = k/w, where k is the constant area; choice A gives this equation.

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